A money search circuit and an ECC decoding device and method based on the money search circuit

A technology for searching circuits and magic devices, which is applied in the field of error correction code decoding in the field of digital communication, and can solve the problems of long three-stage assembly line time and affecting ECC decoding speed, etc., to save area, shorten error correction time, and save chip area Effect

Active Publication Date: 2018-03-16
ARKMICRO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The time required for the three-stage pipeline is also longer, which affects the speed of ECC decoding

Method used

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  • A money search circuit and an ECC decoding device and method based on the money search circuit
  • A money search circuit and an ECC decoding device and method based on the money search circuit
  • A money search circuit and an ECC decoding device and method based on the money search circuit

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Embodiment Construction

[0040] The money search circuit and method described in the specific embodiments of the present invention, as well as the ECC decoding structure and method based on the money search will be described in detail below with reference to the accompanying drawings.

[0041] Such as image 3 Shown is a specific implementation structure diagram of the money search circuit described in the specific embodiment of the present invention; the money search circuit includes t submodules, t×(P-1) shift registers, and P adders and (P -1) a divider, each submodule in the t submodules includes a multiplier, a two-input selector (MUX) and a D flip-flop, and the t submodules and an adder form the P channel; Every t shift registers and an adder and a divider form a channel, therefore, the t×(P-1) shift registers, and P-1 adders and (P-1) dividers The first to (P-1)th channels are formed; a total of P channels.

[0042] Among them, in the Pth channel, one input terminal of the t two-input selecto...

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Abstract

The embodiment of the present invention discloses a money search circuit, the circuit includes t sub-modules, t×(P-1) shift registers, P adders and P-1 dividers, among the t sub-modules Each submodule includes a multiplier, a two-input selector (MUX) and a D flip-flop, and the t submodules and an adder form the P channel; every t shift registers and an adder and a divider The device constitutes a channel, forming the first to P-1 channels; based on the money search circuit, the present invention also proposes an ECC decoding structure and an ECC decoding method using a two-stage pipeline. The money search circuit of the present invention saves the chip area by adjusting the number of channels, and greatly shortens the error correction time of the money search, thereby reducing the ECC decoding to two-stage pipelines and accelerating the ECC decoding speed.

Description

technical field [0001] The invention relates to the field of error correction code decoding in the field of digital communication, in particular to a circuit for money search in error correction codes, and an ECC decoding device and method based on the money search. Background technique [0002] With the continuous upgrading of the capacity of NAND FLASH storage devices, its structure transitions from SLC to MLC, and then to TLC. Due to the characteristics of NAND FLASH storage devices, errors will inevitably occur during data transmission. Therefore, it is necessary to add some redundant codes to detect and verify error codes during data transmission, and the ECC error correction system is introduced in this case. According to the error characteristics of NAND FLASH data, that is, the data of NAND FLASH is errored by bit, which is the same as the error correction characteristics of BCH code, so the BCH code is introduced as the ECC code of NAND FLASH type equipment. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/15
Inventor 陈志王斌石岭
Owner ARKMICRO TECH
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